Fruit and vegetable juice expresser.



J. MOLINA & H. ASORF, FRUIT AND VEGETABLE JUICE EXPEESSER.

APPLICATION FILED 113111123, 1914.

1,127,910. Patented Feb. 9, 1915.

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JOSE PH MOLINA'AND HENRY ASOR, OF NEW HAVEN, CONNECTICUT.

K FRUIT AND VEGETABLE J UIGEEXPRESSER- J To all whom it may concern Iwhich may be readily operated and which is not likely to become clogged.

A specific object of the invention is to combine with the feed andcompressing screw a conical screen in which the screw operates and aspring to normally keep the screw pressed outwardly in the screen andvet permit the screw to yield and move inwardly a. slight distance fromthe screen to prevent the machine from becoming clogged and topermit ofthe discharge of the skins and seeds from the discharge end of thescreen.

The invention consists in the construction,

- combination and arrangement of devices hereinafter described andclaimed.

The accompanying drawing is a vertical longitudlnal central sectionalview of a juice expresser constructed in accordance with our invention.

In accordance with our invention the hopper 1 is formed at its lower,discharge end, with a horizontally arranged cylindrical chamber 2 whichis open at one end and the wall of which is annularly recessed as at 3and provided with a screw thread 4. The opposite end of the chamber hasits end wall 5 formed with a bearing 6. A standard 7 depends from thelowerside of the wall of the chamber and is formed with a foot or 2. Acrank handle 12 is screwed to' the prov jecting outer end of the shaft.Said shaft is Provided at a suitable distance from its Specification ofLetters Patent.

outer end with an annular flange 13 and its inner end 14 is crosssectionally rectangular as indicated in the drawing.

A compressing screw 15 is provided with a cylindrical enlarged innerportion 16 which is arranged to fitand revolve in the chamber- 2,directly below the discharge opening 17 of the hopper and the said screwhas a tapered outer portion 18 which pro jects through and beyond theopen end of the chamber 2. (The thread of the screw is formed by aspiral groove 19'which is widest at the inner end of the screw and whichdiminishes in width and depth toward the smaller outer end of the screwas shown. The screw is hollow, having a bore 20 in its outer portion anda somewhat larger bore 21 in its inner portion and spaced from the bore20, the wall 22 which separates the bores being provided with arectangular opening 23 through which the correspondingly shaped portion14 of the shaft 11 extends: Hence the screw is mounted on the shaft forrotation therewith and also for longitudinal movement. The flange 13 ofthe shaft bears against the inner side of the wall 22. Y

A frusto-conical screen 24 is fitted on the tapered portion of the screwand is here shown as made of foraminous material. The screen is formedat its smaller, outer end, with a discharge funnel 25 and has itslarger, inner end arranged in and secured to an annular nut 26 which isscrewed in the recess 3 of the body of the machine and at the outer endof the chamber 2.

Patented Feb. 9, 1915., Application filed tune as, 1914. Serial no.846,884.

A coiled spring 27 is arranged around the shaft 11 and in a tubularbushing 28 which is fitted in the bore 21 of the screw. The

bushing, against which one end of the "flange 13 and the spring exertslts tensionto force the screw outwardly so as to norly ngage the taperedportion of the screw against the inner side o the screen.

In the operation of our invention the tomatoes or-other vegetables orfruits, which are placed in the hopper 1 are caught by the screw, andthe latter being revolved the screw coacts with the edge 29 formedaround the discharge opening of the hopper to cut the vegetables orfruits and as the screw revolves the pieces are forced outwardly thereonand between the screw and the screen and so compressed by the action of.i the screw as to extract all the juices therefrom, the juices passingout through the openings in the screen. The skins, seeds, and the likeHaving thus described our invention, we

claim 1. In a grinding and juice expressing machine of the classdescribed the combination of a screw, means to rotate the same, a screenin which the screw revolves and means to permit yielding longitudinalmovement of the-screw from the screen to prevent cloggmg.

2. In a machine of the class described a body having a hopper and acylindrical chamber into which the hopper discharges,

a shaft mounted in a bearing in the body and extending through thecenter of said chamber, a screw having a cylindrical portion in saidchamber and a tapered portion extending outwardly from said chamber,said screw being mounted on said shaft for rotation therewith andlongitudinal movement thereon, a frusto-conical screen in which thetapered portion of the screw revolves, means to detachably securethescreen to the body which is in communication with said chamber, and aspring acting to force the screw normally outwardly in the screen andpermit the screw to move inwardly therefrom to prevent clogging.

3. In a machine of the class described a body having a hopper and acylindrical chamber into which the hopper discharges,

.a shaft mounted in a bearing in the body and extending through thecenter of said chamber, a screw having a cylindrical portion in saidchamber and a tapered portion extending outwardly from said chamber, at

said screw being mounted on said shaft for rotation therewith andlongitudinal movement thereon, a frusto-conical screen in which thetapered portion of the screw revolves, an annular nut to detachablysecure the,screen to the body and communication with said chamber,, anda spring arranged around the shaft and in a bore of the screw acting toforce thescrew normally outwardly in the screen and permit it to moveinwardly therefrom to prevent clogging.

1 In testimony whereof we aifix our signa-' two witnesses.

. JOSEPH MoLINA.

-. HENRY ASOR.

Witnesses:

V HENRY FLnIsoHNEL, 2d,

1 (links. BENATTI.

tures in presence of

